[automerger skipped] drop no-longer present release_config_map.mk am: b681b9f9 -s ours

am skip reason: Merged-In Ia3ae6787183208a216dc4ea26c2fc3a9e4f56054 with SHA-1 b6afc6dd is already in history

Original change: https://googleplex-android-review.googlesource.com/c/platform/build/+/28052748



Change-Id: I09cfc6a47f0beeb993e42e7d0f9b42425090f27e
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>